168061995 has 12 divisors (see below), whose sum is σ = 291307536. Its totient is φ = 89633040.

The previous prime is 168061963. The next prime is 168062009. The reversal of 168061995 is 599160861.

It is not a de Polignac number, because 168061995 - 2⁵ = 168061963 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 3734711 = 168061995 / (1 + 6 + 8 + 0 + 6 + 1 + 9 + 9 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 168061995.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1867311 + ... + 1867400.

It is an arithmetic number, because the mean of its divisors is an integer number (24275628).

Almost surely, 2^168061995 is an apocalyptic number.

168061995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

168061995 is a deficient number, since it is larger than the sum of its proper divisors (123245541).

168061995 is a wasteful number, since it uses less digits than its factorization.

168061995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3734722 (or 3734719 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 168061995 is about 12963.8726852743. The cubic root of 168061995 is about 551.8526997483.

The spelling of 168061995 in words is "one hundred sixty-eight million, sixty-one thousand, nine hundred ninety-five".